Etymograph

English

corundum

Corundum comes from Tamil குருந்தம் ‘ruby, sapphire’.

  1. Tamilmodernகுருந்தம்kuruntam‘ruby, sapphire’
  2. Englishtodaycorundum

attested reconstructed ? uncertain or disputed

Lineage

  1. Tamilmodernகுருந்தம்kuruntam‘ruby, sapphire’
  2. Englishtodaycorundum

first attested First attested in the early 18th century (as stated in the etymology)

The story

From Tamil குருந்தம் (kuruntam, “ruby, sapphire”) First attested in the early 18th century.

Today it means

noun An extremely hard mineral, a form of aluminum oxide with the chemical formula Al₂O₃, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.

Language periods are conventional ranges, not dates for this word.

Etymograph / Tamil குருந்தம் / corundum